MS Iona is an Excellence-class cruise ship in service for P&O Cruises, a subsidiary of Carnival Corporation & plc. She was delivered in October 2020 at a cost of £730 million. Iona was floated out on 18 February 2020 and delivered eight months later on 9 October amid the COVID-19 pandemic, which delayed her debut by more than a year until 7 August 2021, when she sailed her maiden voyage from Southampton.